-
Scam Alert. Members are reminded to NOT send money to buy anything. Don't buy things remote and have it shipped - go get it yourself, pay in person, and take your equipment with you. Scammers have burned people on this forum. Urgency, secrecy, excuses, selling for friend, newish members, FUD, are RED FLAGS. A video conference call is not adequate assurance. Face to face interactions are required. Please report suspicions to the forum admins. Stay Safe - anyone can get scammed.
What is this?
- Thread starter DavidR8
- Start date
TorontoBuilder
Ultra Member
solid state relay...
use a small voltage and amperage to control a large voltage and amperage
Doggggboy
Ultra Member
Inkbird SSR for PID Temperature Thermostat Controllers
25A DA SSR SOLID STATE RELAY for temperature controller Specifications: Load Voltage: 24-380VAC Load Current: 40A Input Voltage: DC 3-32V Pacakge: 1x 25A DA SSR 40A SSR SOLID STATE RELAY for temperature controller Specifications: Load Voltage: 24-380VAC Load Current: 40A Input Voltage: DC 3-32V...
inkbird.com
TorontoBuilder
Ultra Member
yep, just what I use mine for in conjunction with the PID controller. It turns on low voltage when temperature falls too low, and the SSR turns on 120v fan to send more oxygen to my coals.Inkbird SSR for PID Temperature Thermostat Controllers
25A DA SSR SOLID STATE RELAY for temperature controller Specifications: Load Voltage: 24-380VAC Load Current: 40A Input Voltage: DC 3-32V Pacakge: 1x 25A DA SSR 40A SSR SOLID STATE RELAY for temperature controller Specifications: Load Voltage: 24-380VAC Load Current: 40A Input Voltage: DC 3-32V...
TorontoBuilder
Ultra Member
some people use a control voltage to turn on a router
Oh interesting. Everything will go through the Masso contoller. Servos are all step and direction controlled including the servo that I'll be using for the spindle.
The problem with relays is that the contacts arc because they switch on power when the voltage may be at a peak. The SSRs only switch at the zero crossing so they are easier on the equipment. You can generally run them with a lower voltage output. For example a 12V relay needs a diode across the windings and needs to have 12V to switch on. The SSRs don't need that and can often be switched on with just 5V so a perfect companion for your interface board.
Coolant or mister pump control.
That's a definite possibility though wouldn't I just use a solenoid? (asking naively...)
It's the control of the solenoid that is the issue. If it's a 12V solenoid and your Masso controller has 5V output it won't run. So first question to answer is what are the specifications of the outputs on the controller?
Good points. Use a contactor to switch the main power on. The E-stop will be wired in series with the solenoid of the contactor. After the contactor use the SSR on one side of the circuit to control the device you are applying the power to.
For example the inexpensive Break Out Board from China has standard logic outputs for the Step/Dir pins but does have a relay that can control something larger like a contactor or solenoid.
It is 5V so I'll need something to trigger the solenoid.
Use the SSR.....